Shuttle



Jan. l, 1929.

J. B. DAUDELIN Filed April 1927 shuttle wall counterborecl at 11 to receive my eye guide 01' threacl conductor 12. In the form shown in the clmwings, this ooncluotor consists 01": a devioe 01 geneml clothespin design, one shank 12 being somewhat longer than the otl1e1, and 015 s]ightly larger diameter and having a flat ond 12"; the other shank 12 is somewhat shortor and jls bevelecl on its upper innen face at 12 to permit e2msy ancl nnobstructd passago of the thread thereover. Between ehe shanks a recess 01 guideway 12 in which the threacl travols 0n its way f10n1 oho bolobin to the eye. This concluctor is positionecl in oho bore 11, so that its shanks extend through the recess beneath the overhang 5 ancl enter a oounterbore 13 in the shut-tle body in alignment with the boro 11. The longe1 shank 12 extends to the enti1e clepth of the bore 13 but betweeri the shorter shank 12 ancl th'e overhang 5 thele is just sufficient space to permit easy clearanco 10r the thread 0ver the shank 12 into the guideway 12 I Will DOW describe my unitary threading guide anddelivery eye. This con1prises 21 single length of wixe 20 1ncl is so shaped at one encl as t-o define a, threacl delivery eyo 20 adapted to be fittecl within the delivery opening 7 in the shuttle Wall; and at its opposite end 20 acts as a guide o1 guard over which the thread is slipped ancl which guides ehe thleacl in threading the shuttle in its passage through the slots 9 und 10 hence to the delivery eye 20 seated in the 'dellver 0 3enin 7. This unitar device has an extended shank 20 which enters ancl is firmly hold in the bore 8 of the shuttle Wall. Inwarclly of the e e 20, the shank 20 is bent .upon itself as in ioated at 20 to provide a barrier effective to prevent escape 015 ehe thread from ehe eye of the shuttle after threading of the shuttle. This barrier 20 is also eflective t0 guide the threacl f1om the bobbin in its passage throughthe opening 7 t0 the metal eye 20.

It will. be noted (Fig. 3) that the boro 8 for the unit-ary guard ancl delivery eye und the lo0re 13 for the shanks of the, threacl Conductor 12 ov6rlap. This overlapping avoicls any necessity for sawing or out-L-ing {L passageway f01 the thread from tl1e b01e 13 10 the snubbing ost 14 which is located. transversely of tho shuttlo midway oftho 100150 8 ancl clirectly in line with tho tlnoacl delivery oponing 7 und the metal cye 20' insorted therein.

In threacling my shuttle, the throad is carried straight forward from tho boboin 3 und slippecl over th e extreme end 20 of the thread guard 20. It is then pul lecl back through the slot 9 until lt Slips into tho other encl 20 of the guicle 20 whioh is seated in the delivery opening 7 of the shuttle Wall. As the thread rouncls the post14 it is Clirectecl to the right just enough to cause it way 12 through whioh it continues to tr-avel so long as the shuttle is in use Once tho sln1ttle iss threacled and tho thread is in the recoss 12 ancl tho eyo 20 it is practically impossiblo to unthroacl tno szune without breaking t-l1e th1ead; nor is there any chanco 01 tho thread jumping ont ofits precleter- 1nined puth of tmvel within the condnctor 12 in case tho shuttle is at rast and tho th1ead slack.

Vmio11s modificatlons may be n1ade in tho construction of my threacl conduotor; und its osition in the thront of the shuttl'e ancl with rolation to the clelivery eyeobviously may be va1iecl. The construction ancl curvatur of t-he thread guicle ancl wire clelivery eye may also be vafiecl in oraler to adapt the samo t0 "che contonr 01 the threaded slots, und other moclifications in the form anc1 construotion of the clovice 1nay be 1nacle W ithout cleparting from the spirit of 1ny invention if within the limit-s of the appendecl clain1s.

VVhat I therefore olaim and desire to secure by Letters Patent is 1. In a shuttle having a thront, ancl a threacl delivery eyo, a bore intersecting said throac, a threacl oonoluctor compr1s1ng a umlary slottecl clevice of general olothespin clesign, one shank being shorter than the othe1, saicl condndtor clisposecl in saicl bore with said shorter shank uppormost,- a space oetween said shank ancl tl1e Wall of saicl bore to permit the thread to slip over said shank ancl pass through saicl slot in its travel from tl1e bobloin to the thread clelivery eye, a seconcl boro interseccing said throat ancl pro f0r the threacl from the conclu'ctor t0 the clelivery opening, a thread gnarcl ancl guide mounted 1n szucl secondloore and effectwo initially to guide the threacl through s:1icl

slotinto saicl delivery oponing and subsequently to prevent escape of the tlnread-by direct upward lifting movement cluring the. 1'1111 of the shuttle.

2. In a shnttle having a thront ancl a threml clelive1y oye, the shuttle Wall acljacent sui l throat bolng shaped to- (lofine an ovorlmng 101 n portion o1 said thront, a bore interseccing saicl throat, a tlnead (2011- cluotor co1nprislng a unitaryslotted devioe of gonoral clothespin design, one sl1ank be ing shorter than the other, said conductor disposecl in said boro with said' shoxter Shank uppermost, a space between said shank ancl the Wall 0f saicl boie to permit the tln eadto slip over saicl shank and pass through salcl slot in its travel from the bobbin .to tl1e threacl delivery eyo, a seconcl b01e intersecting saicl thront anal also beneath saicl overhang ancl providing a threacl delivery openb01e ancl effective initially to guide the,

thread through said sl0t into said delivery opening ancl subsequently to prevent escape.

0f the thread by cli1ect upward lifting move ment during the 1un ofthe shnttle.

3. In a shuttle having a throat' and a thread delivery eye, the sl1ut-tle Wall adja Cent saicl throat being shapecl t'0- define an overhang f01 a portion 0f saicl throat, a bore intersecting said throat, a thread conductor comprising a unitary slottecl clevice 0:' general clothespin design, 0ne shank being shorter than the other, said concluctor disposed in said bore with sa'1d shorter shank nppermost, a space between said shank and the Wall ofsaidbore t0 pern1it the thread t0 slip over said shank ancl pass thr'ough said Y slot in its travel from the bobbin t0 the thread delivery eye, a seconcl b01e intersecting said throatand also leneath said overhahg ancl providing a thread clelivery opening said bores overlapping to afiorcl a connecting passage for the thread fr01n the conductor to the delivery opening, a thread guard and guide mou'nt'ed in sail seconcl bor ancl effective i'nitially 130 guicle the threacl through said 51015 into sai cl delivery opening ancl snbsequentl-y 1:0 prevent escape 0f the threacl bydirect 1ujwarcl lifting movement during the rnn 'f the shuttleQ ancl a vertically disposed snubbing post disposecl against the inner end 01i the eye and between it and the thread gnidie.

4. In a shuttle having a throatancl a thread delivery eye, a slottecl threacl conductor spacecl from ehe shuttle Wall t0 permit the thread 130 pass into and through saicl S101; in its traVel fro1n the bobbin to tl1e threacl clelivery eye; a threacl guide and guard mounted in said clelivery eye ancl ef fective initially to guide the threacl through saicl slot into saicl de1ivery opening and subsequently 120 prevent escape of the threacl by direct upwarcl lifting movement cluring the run 0f the shuttle.

5. In a shuttle having a throat and a thread delivery eye, a slot-ted threacl C011- ductor spacecl fron1 the shuttle Wall 10 pe1= mit the tlneacl t0 pass int0 and th1ough said slot in its travel fron1 th bobbin t0 the thread delivery eye; a threacl guide ancl quarcl mountecl in saicl delivery eye ancl ef fective initiall y t0 guide the threacl through said slot into said delivery opening and sub sequently to prevent escape of t-he threacl by cli1ect upwarcl lifting movement during the run of the shuttle, and a snubbing post disposed against the inner enol of the eye ancl between it and the thread guicle.

6. In a shuttle having a throat, ancl a thread clelivery eye, the shuttle Wall adjacent saidthroatbeing shapecl? to define an o'verhang 'i01 a port1on of sa1d throat, a slottecl threacl concluctor cl1sposed beneath said overhang and spacecl' f10m the shuttle Wall beneath saicl overhang to permit' tlie threacl 150 pass into and through sai cl sl'ot in its travel fro1n the bobbin t0 the threacl' der liwry eye, a thre2td guide ancl guard mounted in saicl delivery eye ancl effect-ive initially 10 guide the thread th1ough said sl0t into saicl clelivery opening a-ncl Subsequent-ly 150 prevent escape of" the threacl by direct upward lifting 111OV8;II1G1113 cluring the run Of the shuttle.

7. In a shuttle having a throajs, and a threacl delivery eye the shnttle all adjacent said throat being shaped to define an overhang for a ortion of said' throat, a slotted thread conductor disposecl' beneath said overhang, anal spacecl from the shuttle Wall beneath saicl overhang to permit the threacl t-o pass into ancl through saicl slot in its travel f1'01n the b0bbin to tl1e threacl clelivery eye, a threacl guideancl guard mountecl in Saicl delivery ey6 ancl (allective initially to guide the threacl t11rough said slot into said delivery opening ancl si1bsequently to prevent escape 0f tl1e threadf by clirect upwarcl lifting mve1nent during the run 0f the shnttle, an d a snubbing p'ostdispos ed against t he inner end 0f the eye ancl bet-ween it and the thread guicle.

8.In a self threadihg shuttle, afhroait having a transverse bore providing a threading eye, a vertically disposecl longitudinal threacling kerfj extending from said thrat across said b0re anal cl0W11wardly inclined rearwardly directecl kerf intersecting with said vertical kerf ancl said eye and forming with said vert-ical kerf an overhanging nose, a vertical post thr-ough saiol bore and substantially aligned with the bobbin axis, ancl a Wire member having a free encl in the forwarcl part 0f the vertical kerf and extencling along the ec1ge of the nose and enci'rcling the onter end of the eye in an in warclly directed spiral of slightly more than 360 and then returnedyto leave a rearwvardly projecting bencl, thence across the throat in substantially the plane of the intersection of the rearvvardly directecl kerf with the transverse eye.

9. In a self threading shutt-le, a throat having a transverse bore providing a threacling eye, a vertically disposecl longitudinal threading kerf extencling fro1n said th1oat across said bore and a downwardly inclined rearwarclly directed kerf intersecting with said vertical kerf and said eye ancl forming w ith said vertical kerf an overhanging n0se having a groove along its edge acljacent the rearward kerf, a vertical p0st through said bore and substantially aligned with the bebbin axis, ancl a wire member having a fre-e end in the forwald part- 0f the vertical kerf and extencling along the eclga 01. Ehe nosn and partially seatecl in seid groovn ancl oncirniing the out-er end 0f th0 eye in an invardly (lirectecl spiral of slightly more than 360 und then retnrned to leave a rearwanlly projecting band, thence acr0ss the tln0at in sub stantially tlxe plane 0f the intersection of tl1e reafwarclly clirected kerf Willll the lsrans- Verse eye.

10. In a shuttle, a throat l1aving a transverse bare provicling a threacling eye, a vertically clisposecl longitudinal threacling kerf extencling from saicl throat across saicl bore, anal a downwarclly i.nclinecl rearwarally Clirect-ecl kerf intersecting with saicl vertical kerf ancl saicl eye ancl for1ning with saicl vertical kerf an overhanging nose, anal a wire melnber having a free encl in tl1e forward pa1t 0f the vertical kerf ancl extencling along the edge 0:E the nose ancl encircling the onter encl ol the eye in an inwardly directecl spiral 0f sllghtly 1nore tl1an 360 und. tl1en returned t0 leave a rearwardly pro jecting bencl, thence across tho throat in substantially the plane of the intersection 0?E tl1e rearwarclly directecl kerf with the transverse eye.

l1. In a shuttle, a throat having p. tlnearling slot anal a transverse bore provicling a. threacling eye, a unitary threacl gnarcl ancl guicle having a free encl lying acljacent saicl threacling slot, an inwarclly clirectecl spiral lying within saicl eye ancl beyoncl saicl spiral bent co provicle a barrier to guide tl1e threacl from the bobbin t0 the shuttle eye anal prevent the escape 0f tl1e threacl fr01n tl1e eye during the run 0f the shuttle, saicl member beyond said ba1rier extencling inwarrlly throngh sa1cl threachng eye ancl anchnred 111 the Wall 01" tl1e shnttle.

12. A tlneacl guicle and guarcl f01. use with a shnttle lmving a threacl clelivery opening anal a tln-eacling slot connecting the bobbin cl1a1nber Wih the dellvery encl of tl1e eye, comprising a unitary mernber having a free end shaped to lie acljacent saicl threacling sl0t ancl an inwarclly directecl spiral, adaptecl t0 lie within saicl clelivery opening ancl clefining a clelivery eye, ancl beyoncl saicl spiral bent t0 provtlcle a rearwarclly projecting barrier 130 guide the tl1reacl f101n tl1e bobbin to saicl opening anal prevent the escape 0f saicl threacl :Er0m saicl eye cluring the run of the shnttle, and thence extencling as a shank adapted t0 lie within saicl thread olelivery opening ancl anch-orccl in sai l sl1uttle Wall.

13. A thread gnide ancl gua1d 1"01 use witl1 a shntblelmving a threacl clelivery opening und a tl1reacling slot connecting tl1e bobbin cl1znnber with the clelivery end of tl1e eye, con1prising a unitary 1ne1nber having a free encl shaped to lie acljacent said threacling slot.

JEAN B. DADELIN. 

